Palavra chave: 即時(shí)(shí)通訊__________，企業(yè)(yè)(yè)(yè)(yè)(yè)溝通_______________，龍笛即時(shí)(shí)通__，視頻會(huì)議______________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)____________，金笛短信